SMAJ4477CE3/TR13

Single Zener Diodes Overview

The SMAJ4477CE3/TR13 is a 1.5 Watt Zener Diode manufactured by Microsemi Corporation, belonging to the SMAJ4460 through SMAJ4496 series. It features a nominal Zener voltage of 33 Volts with a ±2% tolerance, indicated by the 'C' suffix. The device utilizes a DO-214AC (SMAJ) surface mount package and operates within a temperature range of -55°C to +150°C. It provides steady-state power dissipation of 1.5 Watts with thermal resistance of 15 °C/W.

Single Zener Diodes Feature Summary

• Metallurgically bonded construction for enhanced reliability
• Thermally efficient design with J-bend contacts for stress relief
• Low-profile plastic surface mount configuration suitable for automatic handling

Single Zener Diodes Applications

• High reliability voltage regulation in low profile surface mount locations
• Airborne or satellite applications requiring lightweight components
• Protection from ESD and EFT transients per IEC standards

Single Zener Diodes Procurement Notes

Verify the specific ordering suffixes against official documentation to confirm tolerance levels and compliance status. Ensure that the component matches the required electrical characteristics for the intended circuit design before procurement.

Single Zener Diodes Selection Notes

Select this component for applications requiring precise voltage regulation in a compact surface mount footprint. Consider the thermal derating curve when designing for high ambient temperatures to ensure reliable operation within specified limits.

Single Zener Diodes Part Context

This part belongs to the SMAJ4460 thru SMAJ4496 series of 1.5 Watt Zener Diodes. These devices are designed to meet or exceed the performance of traditional axial leaded equivalents while offering improved surge protection capabilities due to larger active die elements.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts within the SMAJ4460-SMAJ4496 series with matching voltage ratings. Verify package compatibility and electrical specifications when substituting with similar products from different manufacturers.